Humidifier



Nov. 22, 1932. M. PERSONS HUMIDIFI ER Filed June 28, 1930 2 Sheets-Sheet 1 Nov. 22, 1932. M. PERSONS 1,888,434

HUMIDIFIER Filed June 28, 1930 2 Sheets-$heet 2 Patented Nov. 22, 1932 UNITED STATES PATENT OFFICE LAWRENCE M. PERSONS, OF ST. LOUIS MISSOURI, ASSIGNOR TO THE EMERSON" ELECTRIC MFG. 00., OF ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI HUMIDIFIER Application filed June 28, 1980. Serial No. 464,491.

This invention relates to power-driven humidifiers in which moisture is mechanically introduced into a current of air to increase the humidity.

One of the objects of this invention is to provide an improved device of the class described which will be eflicient in operation, simple of construction and free from operating difliculties.

Another object of this invention is to provide in connection with such a device a novel and eflicient conveyor whereby water may be carried from a source of supply to the path of the air currents produced by a fan.

Other objects Wlll be apparent from the following detail description taken in connection with the accompanying drawings, in which Fig. 1 is a front elevation partly in section.

Fig. 2 is a top plan view partly in section.

Fig. 3 is a vertical section.

Th embodiment of the invention as particularly illustrated in the drawings includes a cabinet arranged at its bottom to provide a receptacle for a body of water, louvers in the front of the cabinet, a circular conduit in the rear of the louvers directed toward them and open in the rear, a fan mechanism mounted in the conduit, and means for conveying water from the bottom of the cabinet in the path of the air currents produced by the fan. Means are also provided for connecting the receptacle in the cabinet with a source of water supply and maintaining a substantially constant level of water therein. The means for conveying the water in the path of the air currents produced by the fan is of novel construction, and will be understood from the detail description.

The cabinet as specifically illustrated in the drawings, includes side plates 11, a rear plate 2, front plate 3, bottom plate 4, and a top 5 which may be removable or not as desired. Louvers 6 are provided in the front of the cabinet. To the rear of the louvers a circular conduit 7 is mounted on bracket plates 8 and forms a conduit for the air currents as well as a support for the fan and conveying mechanism.

The bottom of the cabinet is arranged-to provide a receptacle 9 for a body of water. A source of water supply 10 may be provided controlled by the valve 11 which is actuated by the float 12. An overflow pipe 13 assists in maintaining the proper level of the water in the event the valve 11 fails to properly function. The chamber 14 is situated within the receptacle 9 and is in communication with the water by means of a screened opening 15. Mechanism is arranged to convey the water from the chamber 14, the screened opening 15 preventing foreign bodies from .entering the conveying mechanism.

The conduit 7 has its front portion flaring, as shown at 16, and a bafile plate 17 is positioned at the top of the conduit between the flaring end 16 and the louvers 6. A motor 18 is suspended in the conduit 7 by radial spokes 19 and has a shaft 20 which carries t e fan and the conveying mechanism. The fan comprises a concave imperforate disk 21 secured to the shaft 20 and carrying on its rear side a series of vanes 22. The water conveying mechanism includes a pulley 23 mounted on the shaft 20 and a floating pulley 24 unsupported except by the belt conveyor 25. The belt conveyor 25 is constructed of helically wound wire and of the form comparable to the ordinary cylindrical helical spring. The coils of the conveyor are such that they will be substantially closed except when flexed in passing around the pulleys 23 and 24. A cone 26 carried by the web 27 is mounted over the end of the shaft 20 and the pulley 23 and has an opening 28 to accommodate the belt conveyor 25. Its rear end is adjacent the concave surface of the disk 21.

The arrangement of the fan and the conveyor elements is such that currents of air are set up movin outwardly between the flared end 16 of t e conduit 7 and the circumference of the disk 21; a film of water is extruded from the concave face of the plate into the path of the air currents and the water is atomized in the air currents and carried through the louvers. The conveyor belt 25 in moving over the pulley 23 is flexed and the contained water is thrown outwardly inst the inner face of the cone 26 by means o centrifu 1 force. The arrangement 18 such that a of water is formed on the inner face of the cone 26 and moves toward the disk 21 until it is projected upon the concave surface of the disk whence it moves outwardly until it is discharged at the circumferences of the disk.

It is obvious that parts of the invention ma be used to advantage without the whole, an that various changes may be made in the details of construction within the scope of the appended claims without departing from the s lrit of this invention.

I c aim:

1. A humidifier including a receptacle adapted to contain water, a fan member mounted above said receptacle including a concave disk, a motor ada ted to drive the fan member, means operable by the motor for conveying water from the receptacle to the path of the air currents produced by the fan, including a pulley on the motor shaft, a pulley touching the Water, a conveyor belt about said pulleys, a conical member about the pulley on the motor shaft adapted to receive and divert the water thrown off by the conveyor belt and having its rear end adjacent to the concave disk.

2. A humidifier including a receptacle adapted to contain water, a fan member above said receptacle comprising a concave disk and vanes mounted on the convex side of said disk, a motor adapted to drive the fan member, means operable by the motor for conveying water from the receptacle to the path of the air currents produced by the fan, including a pulley on the motor shaft, a pulley touching the water, a conveyor belt about said pulleys, a conical member about the pulleys on the motor shaft adapted to receive and divert the water thrown off by the conveyor belt and having its rear end adjacent to the concave disk.

LAWRENCE M. PERSONS. 

